Long-term storage for vegetable seeds - part I
M. Kretschmer
ISHS Acta Horticulturae 598:27-31.
2003
บทคัดย่อ
Seeds of three origins of Brassica pekinensis and Foeniculum vulgare var. azori-cum were stored at +10/30, +5 and –20°C for 20 years, seeds of Solanum melongena for 16 years air-tight in 2 x 100 µ PE bags. Seed moisture content ranged from 5,1 to 8,3 %. Germination tests took place at temperatures from 10 to 307deg;C (steps of 5°C). High germination results were found after 20 years for all B. pekinensis seeds at 10 to 30°C in variant –20°C and for one origin in variant +5°C. F. var. azoricum seeds of two origins germinated after 20 years at 10 to 25°C in variant +5 and –20°C also to a high percentage. S. melongena seeds of one origin showed at the beginning a relative dormancy (after ripening). For seeds of all origins a temporary dormancy was found after seven years depending on the storage variant. Experiments after 16 years indicated a complete breakdown of this dormancy. Seeds of all origins germinated to a high percentage in variant –20°C after 20 years, too.